What extra vendor firewall features are worth selling my clients on?

Discover which emerging network firewall features -- including Quality of Service (QoS), IPS, SSL VPN, antivirus and Web filtering -- are worth selling to clients. Also learn how network performance is impacted.

About the author

Chris Clements is a security architect for Flat Earth Networking Inc., a dedicated information security company based in Nashville, Tenn. Chris has expertise in numerous security systems, security policy, vulnerability assessment and business case analysis. In January of 2007, Chris was launched a consulting offering including research, design, auditing and education for the Fortune 1000 customer market.

At their most basic, firewalls are access control devices. They block or allow communications passing between network segments. Today, however, network firewalls have evolved into multifunction devices with features such as encryption (VPN), authentication, IP address translation (NAT) and traffic rate limiting (also known as Quality of Service), to name just a few.

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Many of these emerging features provide significant customer value, and they may become standard offerings in the future. However, using all the features at once can cause a significant performance hit and care should be taken when recommending them to customers.

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